A burst of laughter and applause greeted the solution of the mystery.

“You have done well, sir,” Munro said cordially, “and have rendered a great service not only in the defeat of the Imperialists, but in its consequences here, for the prisoner said that last night five thousand men were marched away from Tilly's army to observe and make head against this supposed Swedish force advancing from the east. When I have done my meal I will go over to the king with the news, for his majesty is greatly puzzled, especially as the prisoner declared that he himself had seen the Scots of the Green Brigade in the van of the column, and had heard the war cry, 'A Hepburn! A Hepburn!'

“Hepburn himself could make neither head nor tail of it, and was half inclined to believe that this avenging force was led by the ghosts of those who had been slain at New Brandenburg. Whenever we can't account for a thing, we Scots are inclined to believe it's supernatural.

“Now tell me more about the affair, Malcolm. By the way do you know that you are a lieutenant now? Poor Foulis died of the fever a few days after you left us, and as the king had himself ordered that you were to have the next vacancy, I of course appointed you at once. We must drink tonight to your promotion.”

Malcolm now related fully the incidents of the siege.

“By my faith, Malcolm Graheme,” Munro said when he had finished, “you are as lucky as you are brave. Mansfeld is a powerful nobleman, and has large possessions in various parts of Germany and much influence, and the king will be grateful that you have thus rendered him such effective assistance and so bound him to our cause. I believe he has no children.”

“He has a daughter,” Malcolm said, “a pretty little maid some fourteen years old.”

“In faith, Malcolm, 'tis a pity that you and she are not some four or five years older. What a match it would be for you, the heiress of Mansfeld; she would be a catch indeed! Well, there's time enough yet, my lad, for there is no saying how long this war will last.”

There was a general laugh, and the colonel continued:

“Malcolm has the grace to colour, which I am afraid the rest of us have lost long ago. Never mind, Malcolm, there are plenty of Scotch cadets have mended their fortune by means of a rich heiress before now, and I hope there will be many more. I am on the lookout for a wealthy young countess myself, and I don't think there is one here who would not lay aside his armour and sword on such inducement. And now, gentlemen, as we have all finished, I will leave you to your wine while I go across with our young lieutenant to the king. I must tell him tonight, or he will not sleep with wondering over the mystery. We will be back anon and will broach a cask of that famous wine we picked up the other day, in honour of Malcolm Graheme's promotion.”